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Custom Ductile iron material split body full PTFE butterfly valve Manufacturers, Manufacturer
Product Description
| Valve Type: | Flange butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing direction: | Bidirectional | Sealing grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Handle/Lever |
① Thick shell, heavy-type
② High purity rubber, high wear resistance
③ Zero leakage standard
④ Various size in stock
Characteristics
The split type valve body is fastened with high-strength bolts, and the valve body can be disassembled without dismantling the pipeline. The internal components such as the valve plate, valve seat, and lining can be directly removed, and the maintenance time is reduced by more than 60% compared to the integral butterfly valve. It is especially suitable for online maintenance of narrow spaces or large-diameter pipelines. The disassembled surface is precision machined and equipped with special sealing gaskets. After reassembly, the pressure bearing sealing performance of the valve body does not deteriorate, and it can maintain stable operation under nominal pressure for a long time.
Advantages
- Lower cost of lining maintenance and replacement: If the PTFE lining shows local wear and aging, the valve body can be disassembled separately to replace the lining layer or damaged sealing components, without the need to replace the valve as a whole; Compared to the drawbacks of integral butterfly valves where the lining fails and the entire valve is scrapped, it significantly reduces long-term operating costs and is particularly suitable for high-frequency maintenance needs in highly corrosive conditions such as chemical and environmental protection.
- Dual improvement of structural strength and sealing reliability: The disassembly surface of the valve body is precision machined and equipped with high-performance sealing gaskets, which are tightened with bolts to ensure that the overall pressure sealing performance of the valve body is not lower than that of the integral structure; At the same time, the combination of symmetrical valve plate and PTFE soft seal still maintains ANSI Class VI zero leakage capability, and the seal is stable and leak free under bidirectional medium transportation conditions.
Packing
Standard export wooden case packaging
Application Scenarios
It serves a broad range of critical applications: in the chemical industry, it is deployed for large-diameter acid-alkali pipelines, chlor-alkali production lines and pesticide intermediate synthesis systems; in environmental engineering, it is a staple for large-scale wastewater treatment plants.
Material Specifications
| Part Name | Material Name |
|---|---|
| Valve body | Cast iron, ductile iron, stainless steel |
| Valve disc | Ductile iron, Stainless steel, aluminium alloy |
| Valve stem | Carbon steel, stainless steel |
| Valve seat | Rubber |
| Seal | O Type ring |
Dimension Specifications
| DN | L | L1 | D | D1 | H | H1 | b | n-φd | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | inch | PN1.0MPa | PN1.6MPa | PN1.0MPa | PN1.6MPa | ||||||
| 50 | 2" | 108 | 180 | 125 | 125 | 150 | 326 | 83 | 20 | 4-φ18 | 4-φ18 |
| 65 | 2 1/2" | 112 | 180 | 145 | 145 | 165 | 344 | 93 | 20 | 4-φ18 | 4-φ18 |
| 80 | 3" | 114 | 180 | 160 | 160 | 200 | 363 | 100 | 22 | 4-φ18 | 8-φ18 |
| 100 | 4" | 127 | 180 | 180 | 180 | 220 | 396 | 114 | 22 | 8-φ18 | 8-φ18 |
| 125 | 5" | 140 | 180 | 210 | 210 | 250 | 421 | 125 | 24 | 8-φ18 | 8-φ18 |
| 150 | 6" | 140 | 180 | 240 | 240 | 280 | 453 | 143 | 24 | 8-φ23 | 8-φ23 |
| 200 | 8" | 152 | 270 | 295 | 295 | 335 | 578 | 170 | 26 | 8-φ23 | 12-φ23 |
| 250 | 10" | 165 | 270 | 350 | 355 | 405 | 638 | 198 | 26 | 12-φ23 | 12-φ28 |
| 300 | 12" | 178 | 380 | 400 | 410 | 455 | 731 | 223 | 32 | 12-φ23 | 12-φ28 |
| 350 | 14" | 190 | 380 | 460 | 470 | 525 | 783 | 270 | 36 | 16-φ23 | 16-φ28 |
| 400 | 16" | 216 | 450 | 515 | 525 | 580 | 888 | 300 | 38 | 16-φ28 | 16-φ31 |
| 450 | 18" | 222 | 480 | 565 | 585 | 640 | 958 | 340 | 40 | 20-φ28 | 20-φ31 |
| 500 | 20" | 229 | 480 | 620 | 650 | 705 | 1005 | 355 | 42 | 20-φ28 | 20-φ34 |
| 600 | 24" | 267 | 480 | 725 | 770 | 825 | 1128 | 410 | 48 | 20-φ30 | 20-φ36 |
| 700 | 28" | 292 | 640 | 840 | 840 | 920 | 1476 | 478 | 53 | 24-φ30 | 24-φ36 |
| 800 | 32" | 318 | 640 | 950 | 950 | 1020 | 1533 | 525 | 58 | 24-φ33 | 24-φ39 |
| 900 | 36" | 330 | 750 | 1050 | 1050 | 1120 | 1655 | 585 | 65 | 28-φ33 | 28-φ39 |
| 1000 | 40" | 410 | 850 | 1160 | 1170 | 1340 | 1765 | 640 | 76 | 28-φ36 | 28-φ42 |
| 1200 | 48" | 470 | 850 | 1380 | 1390 | 1560 | 1995 | 755 | 85 | 32-φ39 | 32-φ48 |
| 1400 | 56" | 530 | 1000 | 1590 | 1590 | 1760 | 2310 | 910 | 103 | 36-φ42 | 36-φ48 |
| 1600 | 64" | 600 | 1000 | 1820 | 1820 | 1970 | 2595 | 1030 | 123 | 40-φ48 | 40-φ56 |
| 1800 | 72" | 697 | 1100 | 2020 | 2020 | 2180 | 2810 | 1140 | 135 | 44-φ48 | 44-φ56 |
| 2000 | 80" | 760 | 1100 | 2230 | 2230 | 2345 | 3100 | 1250 | 145 | 48-φ48 | 48-φ62 |
Frequently Asked Questions (FAQ)
What standard does this concentric flange butterfly valve comply with?
Our flange butterfly valve is manufactured strictly according to the EN593 standard and features investment casting workmanship to ensure superior structural integrity and precise fitting.
What is the operating temperature range for this butterfly valve?
The recommended operating temperature range for this valve is between -20°C and 120°C (-20°C < T < 120°C), making it reliable for standard industrial fluid processes.
How does the split body design reduce maintenance time?
The split-type valve body is fastened with high-strength bolts, allowing complete disassembly without removing the main valve body from the pipeline. Internal parts such as seats and linings can be replaced directly, reducing maintenance downtime by over 60%.
What sealing performance level does this valve achieve?
The valve provides a bidirectional zero-leakage sealing grade (ANSI Class VI) using a high-purity rubber seat and precision-machined sealing surfaces.
What body and disc materials are available for custom configurations?
Valve bodies are available in Cast Iron, Ductile Iron, and Stainless Steel. Discs can be crafted from Ductile Iron, Stainless Steel, or Aluminium Alloy depending on fluid compatibility requirements.
How is the valve packaged for overseas shipping?
All items are packed using standard export wooden cases to protect the valve stem, disc, and body from mechanical damage during ocean and air transport.
